They can use counters or their fingers, but they can also use doubles facts. If they know 5 + 5 = 10, they know that the sum of 5 + 6 will be one more.
What is meant by addition?One of the four fundamental mathematical operations, along with addition, subtraction, multiplication, and division, is addition.
The sum of 5 + 6.
They can utilize counters or their fingers, but they can even utilize doubles facts. If they understand 5 + 5 = 10, they know that the sum of 5 + 6 will be one more.
Therefore, 5 + 6 = 11.
Estimating other doubles-plus-one facts together, such as 3 + 4, 7 + 8, and 9 + 8.
Repeat the doubles facts so they can use them to solve equations.
They can also use doubles-minus-one facts to enable them solve equations.
Write down 9 + 10 and have your children find the sum.
If they know that 10 + 10 = 20, they know that the sum of 9 + 10 will be one less. Therefore, 9 + 10 = 19.
solving different number sentences together.
Therefore, they can utilize counters or their fingers, but they can even utilize doubles facts. If they understand 5 + 5 = 10, they know that the sum of 5 + 6 will be one more.
Therefore, the correct answer is option A) 5 + 5 = 10.
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how many integers are from 31 to 40
The number of integers from 31 to 40 is 10
What are integers?Integers are the set of positive whole numbers and negative whole numbers including zero. Examples are 5, 81, -56, 9, -2, 0, 17 etc.
From the question, we are to determine the number of integers there are from 31 to 40.
First, we will list all the whole numbers from 31 to 40.
The whole numbers from 31 to 40 are
31, 32, 33, 34, 35, 36, 37, 38, 39, and 40.
All of these numbers are positive whole numbers. Thus, they are integers.
The number of integers listed above is 10.
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I don’t know the rest of the definition of my vocabulary
Step 1
Given;
Step 2
Two angles are called supplementary when their measures add up to 180 degrees.
Two angles are called complementary when their measures add to 90 degrees.
The two angles are said to be adjacent angles when they share the common vertex and side. The endpoint of the rays, forming the sides of an angle, is called the vertex of an angle. Adjacent angles can be complementary angles or supplementary angles when they share the common vertex and side.
Answer;
Two angles are called supplementary when their measures add up to 180 degrees.
Two angles are called complementary when their measures add to 90 degrees.
The two angles are said to be adjacent angles when they share the common vertex and side.
Walter is a waiter at the Towne Diner. He earns a daily wage of $50, plus tips that are equal to 15% of the total cost of the dinner he serves. What was the total cost of the dinners he served if he earned $170 on Tuesday?
Jason, this is the solution:
Walter's daily wage = $ 50
Tips = 15% of the total cost of the dinner he serves
Tuesday earnings = $ 170
Therefore,
Tips = 170 - 50
Tips = 120
For finding the cost of the dinners, we use Direct Rule of Three, as follows:
Percentage Cost
15 120
100 x
_____________________
120 * 100 = 15 * x
12,000 = 15x
Dividing by 15 at both sides:
15x/15 = 12,000/15
x = 800
The total cost of the dinners Walter serverd on Tuesday was $ 800
A body is moving in simple harmonic motion with position function
s(t)= 4 + 5 cos t
Find the body’s velocity at t= 2π/3
The velocity of the body under simple harmonic motion is equal to - 5√3 / 2. (Correct choice: B)
How to find the velocity of a body under simple harmonic motion
Simple harmonic motion is a kind of self-sustained periodic motion that observed the following formula:
y = y' + Δy · cos ωt (1)
Where:
y' - Initial positionΔy - Amplitudeω - Angular frequency.t - TimeThe equation for the velocity of the body in simple harmonic motion is found differentiating (1):
v = - ω · Δy · sin ωt (2)
If we know that ω = 1, t = 2π / 3 and Δt = 5, then the velocity of the body is:
v = - 1 · 5 · sin (2π / 3)
v = - 5 · sin (2π / 3)
v = - 5 · √3 / 2
v = - 5√3 / 2
The velocity is equal to - 5√3 / 2.
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The length of the smaller rectangle is 8 inches and the width is x inches. The length of the larger rectangle is 10 inches and the width is 5 inches. What is the width of the smaller rectangle?
The width of the smaller rectangle is 4 inches.
What is the width of a rectangle?A rectangle has four sides, but because the sides are paired, it only has two distinct dimensions. The width is traditionally the shortest of these two dimensions, but when the rectangle is shown lying on its side, the horizontal side is commonly referred to as the width.
Given:
The dimensions of the smaller rectangle are:
Length = 8 inches
Width = x inches
The dimensions of the larger rectangle are:
Length = 10 inches
Width = 5 inches
Using proportion we determine the value of x,
[tex]\frac{8}{x} = \frac{10}{5}[/tex]
Cross-multiply the terms,
8 × 5 = 10x
x = 40/10 = 4
Therefore, the width of the smaller rectangle is 4 inches.
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Jackson is comparison shopping for orange juice. He created a table to help him decide which package was the best deal.
Verify
REmember that the best deal is the deal with the less unit rate
so the order is
89 0z bottle is the best deal
64 oz cartoon
59 oz bottle
case of 24 10 oz bottles
10 oz bottle
therefore
Jason is not correct
4. Understand Draw two lines of reflection through point A so that the composition of the reflections across the lines maps onto the image shown.
When a group of point is reflected across a line the distance of the points to the line must be equal, therefore the figure is inverted. With this in mind we can trace the intermediate step that is missing and finally draw the two lines.
Notice that the triangle get's inverted on each reflection around the lines.
find the value or measure. Assume all lines that appear to be tangent are tangent. X=
According to the secant-tangent theorem, we have the following expression:
[tex](x+3)^2=10.8(19.2+10.8)[/tex]Now, we solve for x.
[tex]\begin{gathered} x^2+6x+9=10.8(30) \\ x^2+6x+9=324 \\ x^2+6x+9-324=0 \\ x^2+6x-315=0 \end{gathered}[/tex]Then, we use the quadratic formula:
[tex]x_{1,2}=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}[/tex]Where a = 1, b = 6, and c = -315.
[tex]\begin{gathered} x_{1,2}=\frac{-6\pm\sqrt[]{6^2-4\cdot1\cdot(-315)}}{2\cdot1} \\ x_{1,2}=\frac{-6\pm\sqrt[]{36+1260}}{2}=\frac{-6\pm\sqrt[]{1296}}{2} \\ x_{1,2}=\frac{-6\pm36}{2} \\ x_1=\frac{-6+36}{2}=\frac{30}{2}=15 \\ x_2=\frac{-6-36}{2}=\frac{-42}{2}=-21 \end{gathered}[/tex]Hence, the answer is 15 because lengths can't be negative.Alexander Litvinenko was poisoned with 10 micrograms of the radioactive substance Polonium-210. Since radioactive decay follows a compounded continuously model, we can determine the amount of substance left in Alexander Litvinenko's body at any given time. If Polonium-210 has a decay rate of .502%, then determine the amount of Polonium-210 left in his body after 190 days. Provide 3 decimal places and units in your answer.
We have
Initial mass of Polonium-210
[tex]N_0=10\text{ micrograms}[/tex]Decay rate, r = 0.502% = 0.00502
Time, t = 190 days
Then, We know that left amount is given by
[tex]N=N_0e^{-rt}[/tex]Solving
[tex]N=10e^{-0.00502(190)}=10e^{-0.9538}=3.853[/tex]Answer: 3.853 micrograms
Determine whether the following graph can represent a normal curve.
The correct options regarding whether the graph can represent a normal curve are given as follows:
C. Yes, because the graph may not satisfy all of the criteria for a normal curve, but it satisfied at least one of them.D. No, because the graph is not always greater or equal to zero.What are the characteristics of a normal curve?The characteristics of a normal curve are defined as follows:
Single peak at the center of the distribution, which is also the mean of the distribution.The function is symmetric.The values of the tails at the distribution are close to 0.The values are all equal or greater to zero.In the context of this problem, these two first options are satisfied. However, the distribution contains negative values, meaning that the graph is not always greater or equal to zero.
Hence, options C and D are correct.
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Brainliest if solved correctly
Answer:
1
Step-by-step explanation:
when there is no number, they are always 1.
1 multiplied by itself is always 1, so 1/1 is 1.
Hope this helps!
btw, brainliest if correct, ty!
Answer/Step-by-step explanation:
Simplify
x⁻⁵
-------
y³
Since the x on top has a negative exponent it must go down to the denominator.
So the answer would be:
1
-------
x⁵y³
I hope this helps!
The midpoint M and one endpoint of CE are given. Find the coordinates of the other endpoint.
M(2,9) and C(4,12)
Hence, the coordinates of other point (x, y) are (0,6).
i.e. (x, y) → (0,6)
Let AB be the segment where
The coordinate M(2, 9) and C(4, 12)
and we have to find the point E.
Let us assume the other point is (x, y)
As we know that
The midpoint is halfway between the two end points, meaning midpoint coordinates are basically termed as the average of the corresponding endpoint coordinates.
Mid - point formula:
m = [tex]\frac{x_{1}+x_{2} }{2}[/tex]
n = [tex]\frac{y_{1}+y_{2} }{2}[/tex]
So,
Substituting M(2, 9) into C(4, 12):
2 = [tex]\frac{4+x_{2} }{2}[/tex]
9 = [tex]\frac{12+y_{2} }{2}[/tex]
Solve the Equation:
[tex]x_{2} = 0\\y_{2} = 6[/tex]
Express solutions in ordered pairs:
(0,6)
Hence, the coordinates of other point (x, y) are (0,6).
i.e. (x, y) → (0,6)
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What is the fewest number of points you must plot in order to have examples of all four sets of numbers, including at least one positive and one negative integer? Explain.
To which sets do positive integers belong? Select all that apply.
A.
Integers
B.
Natural numbers
C.
Whole numbers
D.
Rational numbers
1) Two points are the minimum number of points that need to be plotted to have instances of all four groups of numbers.
2) The sets that positive integers belong to among the available are;
possibilities
Choices A, B, C, and D
1) There are two basic categories into which numbers are often divided:
- Rational numbers
- Irrational numbers
The four examples above are all different categories of rational numbers.
Positive integers are now by definition also known as whole numbers and natural numbers. Whole numbers and natural numbers can therefore be displayed in one graphic.
Since integers may be both positive and negative, as well as include fractions, another plot will be needed to display them.
In order to plot the fewest number of points necessary to provide examples for each of the four sets of numbers
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solve problem below if you are smart.
18 points.
Answer:
See below
Step-by-step explanation:
48 + 3y = 90 degrees so y = 14 degrees
3x + 2x + 12 = 90 so x = 78/5 = 15.6 degrees
If ac = 57 find the measure of ab
9
30
6
27
Step-by-step explanation:
3x+4x-6=57
7x=63
x=9
AB=3x=3*9
AB=27
I know it's hard but I beg you for help!
Answer:
use ASA
Step-by-step explanation:
since D=B, AB║CD
angle DEC=AEB (vertical angles)
AE=EC (given)
Find the zero of 3[2x-(3x-4)]-6(x-3)
First, simplify the expression:
[tex]\begin{gathered} 3\lbrack2x-(3x-4)\rbrack-6(x-3) \\ =3\lbrack2x-3x+4-6(x-3) \\ =3(2x)+3(-3x)+3(4)-6(x-3) \\ =6x-9x+12-6x+18 \\ =6x-9x-6x+12+18 \\ =-3x-6x+12+18 \\ =-9x+12+18 \\ =-9x+30 \end{gathered}[/tex]Then:
[tex]3\lbrack2x-(3x-4)\rbrack-6(x-3)=-9x+30^{}[/tex]To find the zero of the given expression, find the zero of -9x+30:
[tex]\begin{gathered} -9x+30=0 \\ \Rightarrow-9x=-30 \\ \Rightarrow x=\frac{-30}{-9} \\ \therefore x=\frac{10}{3} \end{gathered}[/tex]Therefore, the zero of the given expression is 10/3.
What is the graph of the solution to the following compound inequality?5x - 1 < 19 and -3- X+1s1
on5x - 1 < 19
To solve this inequality add 1 to both sides
[tex]\begin{gathered} 5x-1+1<19+1 \\ 5x<20 \end{gathered}[/tex]Now divide both sides by 5
[tex]\begin{gathered} \frac{5x}{5}<\frac{20}{5} \\ x<4 \end{gathered}[/tex]The solutions lie in the area left to the number 4
For the second inequality
[tex]-3-x+1\leq1[/tex]Add first we will add the like terms in the left side
[tex]\begin{gathered} (-3+1)-x\leq1 \\ -2-x\leq1 \end{gathered}[/tex]Now add 2 for both sides
[tex]\begin{gathered} -2+2-x\leq1+2 \\ -x\leq3 \end{gathered}[/tex]We need to divide both sides by -1, but we should reverse the sign of inequality
[tex]\begin{gathered} \frac{-x}{-1}\ge\frac{3}{-1} \\ x\ge-3 \end{gathered}[/tex]We reversed the sign of inequality when divides it by -ve number
Since 2 < 3
Then if we divide both sides by -1, then it will be
-2 < -3 which is wrong -2 greater than -3, then we should reverse the sign of inequality if we multiply or divide it by a negative number
Then the solutions of the 2nd inequality lie right to -3
Let us draw them
The red part is the solution to the 1st inequality
The blue par is the solution to the 2nd inequality
The area with the 2 colors is the area of the common solution of both inequalities
what is the probability that a card drawn randomly from a standard deck of 52 cards is a nine? express your answer as a fraction
Given the question, we need to know that a standard deck contains 52 cards out of which there are 4 cards showing nine.
[tex]\text{Probability = number of possible outcomes/number of total outcomes}[/tex]To get the probability of randomly drawing a nine will be:
[tex]\begin{gathered} \frac{n\text{ (nine)}}{n\text{ (total cards)}} \\ pr(nine)=\frac{4}{52}=\frac{1}{13} \end{gathered}[/tex]Hence, the probability of drawing nine is 1/13
what are possible dimensions of the rectangular area at the right
The expression used to depict area will be 9 / (3x - 1).
A rectangle may be defined as a closed figure with four sides and four interior angles. The interior angles are 90°.
The given expression for area = 27x - 9
Factorize 27x - 9
Taking 9 as greatest common factor outside, we get
27x - 9 = 9(3x - 1)
We know that the area of rectangle with dimensions length by breadth is given by:-
Area = Length x Breadth
Hence, the possible dimensions of the rectangle will be 9 / (3x - 1).
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Complete Question:
What are possible dimensions of the rectangular area at the right? if area is 27x-9.
Solve the following Let f(x) = | 1-7x /3 | find all of x for which f (x) = 3
Given:
[tex]f(x)=|\frac{1-7x}{3}|[/tex]To find the values of x when f(x)=3, we apply below absolute rule:
If |u|=a, a>0 then, u=a or u= -a
Based on the above rule, our equations would be:
[tex]1-\frac{7x}{3}=3[/tex]And,
[tex]1-\frac{7x}{3}=-3[/tex]Next, we find x for 1-7x/3=3:
[tex]\begin{gathered} 1-\frac{7x}{3}=3 \\ \text{Simplify and rearrange:} \\ \frac{7x}{3}=1-3 \\ \frac{7x}{3}=-2 \\ 7x=-2(3) \\ 7x=-6 \\ x=-\frac{6}{7} \end{gathered}[/tex]Then, we find x for 1-7x/3=-3:
[tex]\begin{gathered} 1-\frac{7x}{3}=-3 \\ \text{Simplify and rearrange} \\ \frac{7x}{3}=1+3 \\ \frac{7x}{3}=4 \\ 7x=4(3) \\ 7x=12 \\ x=\frac{12}{7} \end{gathered}[/tex]Therefore, the answer is A. The solution set is
[tex]\lbrace-\frac{6}{7},\frac{12}{7}\rbrace[/tex]The height (in inches) of a toy that moves up and down on a spring can be modeled by the function y= -(cos x)+2(cos x) (sin x) where x is time in seconds. Within the interval 0 < x < 6, when does the toy reach its minimum height? What is that height?
The correct option regarding the minimum height reached by the toy is:
A height of -1.76 inches at 5.647 seconds.
How to find the minimum value of the function?The function for the height of the toy in the spring after x seconds is modeled as follows:
y = -cos(x) + 2cos(x)sin(x)
It is a trigonometric function, hence there is no rule to find the minimum value of the function as there is for a quadratic function, for example.
Since there is no rule, we have to sketch the graph of the function in the given domain of 0 < x < 6.
Using a graphing calculator, the graph of the function is given at the end of the answer, with minimum point at (5.647, -1.76), hence the correct option is:
A height of -1.76 inches at 5.647 seconds.
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What does origin mean? how can you find the origin in a graph?
Explanation
the origins mean the center of the cartessian plane, it is the point with coordinate
[tex](0,0)[/tex]Answer:
the origin is located at the intersection of the vertical and horizontal axes and the distance to all can be measured from this point..(0,0)
g(x)=6x-9 solve for when x is -8b
The solution to the equation g(x) = 6x - 9 whenx = -8b is g(-8b) = -48b - 9
How to evaluate the value of the function?From the question, the equation of the function is given as
g(x) = 6x - 9
Also, we have the value of the variable to be
x = -8b
So, we substitute -8b for x in the equation of the function
g(x) = 6x - 9
The above equation becomes
g(-8b) = 6(-8b) - 9
Open the brackets in the above expression
g(-8b) = -48b - 9
The above equation cannot be firther simplified
Hence, the solution is g(-8b) = -48b - 9
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The graph below shows Kate’s distance from her home(y), in miles, after a certain amount of time (x), in minutes:
The correct answer is Tim
She drives at a variable speed for 2minutes
For j(x) = 4x − 2, find j of the quantity x plus h end quantity minus j of x all over h period
If j(x) = 4^(x - 2), the solving the given expression [j(x + h) - j(x)]/h gives;
[j(x + h) - j(x)]/h = (4^(x - 2))(4^(h) - 1)]/h
How to utilize laws of exponents?We are given the function as;
j(x) = 4^(x - 2)
Now, we want to solve the expression;
[j(x + h) - j(x)]/h
This gives us;
j(x + h) = 4^(x - 2 + h)
Thus, our expression is now;
[j(x + h) - j(x)]/h = [4^(x - 2 + h) - 4^(x - 2)]/h
Now, according to laws of exponents, we know that;
y³ × y² = y³ ⁺ ²
Thus;
4^(x - 2 + h) = 4^(x - 2) × 4^h
Therefore;
[4^(x - 2 + h) - 4^(x - 2)]/h = (4^(x - 2))(4^(h) - 1)]/h
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find the slope of the line that passes through (1,5) and (9,8)
The slope of the line that passes through the points (x1, y1) and (x2, y2) is computed as follows:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]In this case, the line passes through the points (1,5) and (9,8), then its slope is:
[tex]m=\frac{8-5}{9-1}=\frac{3}{8}[/tex]What is a ratio? And how do I find one if for example I had 4 and 6 ?
Ratio means the quantitative relation between two amounts showing the number of times one value contains or contained in order
example 4 and 6
for example
if we have 4 men and 6 women
we can say the ratio of men to women is 4 to 6
that is 4 : 6
and ratio can also means division
for 4 and 6
= 4 / 6
= 2 / 3
= 2 : 3
that is, for every 2 men we have 3 women
Three cards are drawn with replacement from a standard deck of 52 cards. Find the the probability that the first card will be a spade, the second card will be a red card, and the third card will be a queen. Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.
Probability is expressed as
number of favorable outcomes/number of total outcomes
In a standard deck of cards, the total number of cards is 52.
There are 13 spades in a standard deck. Thus,
probability of selecting a spade = 13/52 = 1/4
There are 26 red cards in a standard deck of cards. Since the first card was replaced, the total number of cards remains 52.
probability of selecting a red card = 26/52 = 1/2
There are 4 queens in a standard deck of cards. Since the second card was also replaced, total number of cards is still 52. Thus,
Probability of selecting a queen = 4/52 = 1/13
Thus, the probability that the first card will be a spade, the second card will be a red card, and the third card will be a queen is
1/4 x 1/2 x 1/13
= 1/104
Already got b I just need a
[tex]y=14x[/tex], where x is the number of gallons used and y is the distance driven in miles.